If you want to give unfair reinforcement to, specifically, no
behaviour, surely something that kills the behaver would
result in preferential no behaviour at all, and hence, have
dominant reinforcement. Im not sure how youd randomise
it, my guess would be that it would be such an unfair
dominant strategy  that of no behaviour at all, once it
achieves dominant equilibrium  that it would act as an
asymptote and clamp to only no behaviour, not allowing
other forms of behaviour to occur thereafter.

In reality the cot with the random electrification rail( always non lethal,just annoying), the child has one behavior, getting out of the cot. Just like life and desktop cold fusion, sometimes you can, mostly you can't. Helplessness is when you don't have that window of can.